.header-container{
    display: flex;
    height: 90px;
    width: 100%;
    align-items: center;
    background-color: rgba(255, 255, 255, 0.8);
   
    position: fixed;
    top: 0px;
    z-index: 9999;

    border-bottom: 1px solid #cccccccb;
    .w{
        width: 1400px;
        margin: 0 auto;

        display: flex;
        justify-content: space-around;
        align-items: center;

        .btn-tab{
            display: inline-block;
            width: 120px;
            height: 40px;
            font-size: 20px;
            line-height: 40px;
            border-bottom: 2px solid transparent;
            font-family: 'Montserrat', Helvetica, sans-serif;
            user-select: none;
            cursor: pointer;
        }
        .btn-tab.active{
            color: #4ec2ff;
            border-bottom: 2px solid #4ec2ff;
        }
    }
}